You can get a proper C compiler in 2KLOC [or under 5Kloc of assembly https://github.com/oriansj/mescc-tools-seed/blob/master/x86/... | https://github.com/oriansj/mescc-tools-seed/blob/master/x86/...] Covering things like gotos, inline assembly, structs, unions, arrays and dozens of types and primitives.

Oberon doesn't provide much advantage over that.

Funny because Selfie reminds me of a maximally compact version of http://www.projectoberon.com/

at the bottom of the linked page the author explicitly references oberon as a source of inspiration for this project

I'm looking into self-hosting compilers, is there a good link for Oberons code that achieves this? Or you just are mentioning that Oberon would probably be able to if one were implemented?